Instruction Sur L'éTablissement Des Nitriã¨Res Et Sur La Fabrication Du Salpãªtre Publiã©E Par Ordre Du Roi. Par Les Rã©Gisseurs Gã©Nã©Raux Des Poudres &Amp Salpãªtres du salpêtre publiée par ordre du Roi. Par les régisseurs généraux des Poudres & salpêtres 1777 [Hardcover]. Reprinted in 2015 with the help of original edition published long back [1777].This book is Printed in black & white, Hardcover, sewing binding for longer life with Matt laminated multi-Colour Dust Cover, Printed on high quality Paper, re-sized as per Current standards, professionally processed without changing its contents. As these are old books, we processed each page manually and make them readable but in some cases some pages which are blur or missing or black spots. If it is multi volume set, then it is only single volume. We expect that you will understand our compulsion in these books. We found this book important for the readers who want to know more about our old treasure so we brought it back to the shelves. (Any type of Customisation is possible). Hope you will like it and give your comments and suggestions.